Update location of rasta tests.

pkg/front_end/lib/src/fasta/testing/kernel_chain.dart

Index: pkg/front_end/lib/src/fasta/testing/kernel_chain.dart
diff --git a/pkg/front_end/lib/src/fasta/testing/kernel_chain.dart b/pkg/front_end/lib/src/fasta/testing/kernel_chain.dart
index f5ecfdd538cac83983f61f80c07a62053c8cc2dc..223e9f1d665b87afd19ca17f4d8fcf48b08ca966 100644
--- a/pkg/front_end/lib/src/fasta/testing/kernel_chain.dart
+++ b/pkg/front_end/lib/src/fasta/testing/kernel_chain.dart
@@ -248,7 +248,7 @@ class MatchExpectation extends Step<Program, Program, dynamic> {
     new Printer(buffer).writeLibraryFile(library);
 
     bool updateExpectations = this.updateExpectations;
-    if (uri.path.contains("/test/rasta/")) {
+    if (uri.path.contains("/test/fasta/rasta/")) {
       // TODO(ahe): Remove this. Short term, we don't want to automatically
       // update rasta expectations, as we have too many failures.
       updateExpectations = false;